Fritsch PULVERISETTE 7 classic line, Operating Manual, Page: 25 / 30

Page 22
PULVERISETTE 7
6 Maintenance
Before commencing maintenance work, disconnect the mains plug and
secure the machine against being switched on again unintentionally.
When maintenance work is being performed, this should be indicated
with a warning sign.
Regular cleaning is the most important part of maintenance of the planetary
monomill.
Functional part Task Test
Maintenance
interval
Safety lock Locking the
hood Is the closed hood held shut
when the main switch is off?
If this test fails, you must not
continue to work before the er-
ror is corrected Before each
use
LID LOCK
ACTIVATED light
in the control pan-
el Indicates that
the hood is
closed With the hood closed, the green
LID LOCK ACTIVATED light
must be illuminated. 1 x monthly
Rotating bearings Permanent lubri-
cation
Bearing play Every 2,000
hours or annu-
ally
Drive motor Permanent lubri-
cation Bearing play Every 4,000
hours or annu-
ally
V-belt Motor
– planet
disc
Check the tension
Remove the housing; the belt
should not yield by more than
approx. 10 mm under thumb
pressure. 1 x annually
Fan Cooling the
grinding cham-
ber and electron-
ics Operation;
clean when dirty 2 x annually
Spindle of the
grinding bowl
holder Clamping the
grinding bowl Freedom of motion; oil lightly, if
necessary Every 1,000
hours
Grinding bowl
holder Cork disc, rub-
ber of the pres-
sure piece, and
grinding bowl lid
seal Signs of use;
when it has been pressed flat
and is thus non-elastic, replace
it Every 1,000
hours